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Maker here 👋 Mailward started because opening an old Outlook archive without Outlook — especially on a Mac — was harder than it should be. Everything runs locally in your browser: the file is parsed on your own machine with the File API and a Web Worker, nothing is uploaded, and multi-gigabyte PSTs open through paged streaming. PST, OST, OLM, MBOX, EML, and MSG all work. Reading, search, and single-message export are free; batch conversion is a one-time $19 license. Happy to answer questions about the formats themselves — we keep our research notes public at pst.aivismonitor.com/email-archive-formats.
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Thanks for taking a look! One small clarification for anyone reading: Mailward isn't an email client or workflow tool — it's a viewer and converter for mailbox archive files (PST, OST, OLM, MBOX, EML, MSG). You drop an archive in, then read, search, and export it locally in your browser; nothing is uploaded.